20
Classic
FF
-
Installation & Servicing
INSTALLATION
35 WATER CONNECTIONS
1.
Remove the plastic plugs from the flow and
return pipes.
2.
Make all water connections and check for water
soundness.
36 ELECTRICAL CONNECTIONS
WARNING.
The appliance must be efficiently earthed.
A mains supply of 230 V ~ 50 Hz is required.
All external controls and wiring must be suitable for mains voltage.
Wiring should be in 3-core PVC insulated & sheathed cable, not
less than 0.75mm
2
(24 x 0.2mm) to BS. 6500 Table 16 Wiring
Regulations and local regulations.
Connection must be made in a way that allows complete isolation
of the electrical supply - such as a double pole switch, having a
3mm (1/8") contact separation in both poles, serving only the
boiler and system controls. The means of isolation must be
accessible to the user after installation.
34 GAS CONNECTION
37 EXTERNAL CONTROLS
The wiring diagrams illustrated in Frames 39-41 cover the
systems most likely to be fitted to this appliance.
For wiring external controls to the Classic FF boiler,
reference should be made to the system wiring diagrams
supplied by the relevant manufacturer, in conjunction with the
wiring diagrams shown in Frames 39-41.
Difficulty in wiring should not arise, providing the following
directions are observed:
1.
Controls that switch the system on or off, e.g. a time
switch, must be wired, in series, in the live mains lead to
the boiler.
2.
Controls that override an on/off control, e.g. frost
thermostat, must be wired into the mains lead, in parallel,
with the control(s) to be overridden. Refer to Frame 41.
3.
If a proprietary system is used, follow the instructions
supplied by the manufacturer.
4.
System designs featuring controls or wiring arrangements
which allow the boiler to fire when there is no pump
circulation taking place should not be fitted.
Advice on required modifications to the wiring may be
obtained from the component manufacturers.
Notes.
1.
Connection between a frost thermostat and the time
control should be made without disturbing other wiring.
2.
A frost thermostat should be sited in a cool place in the
house, but where it can sense heat from the system.
Refer to 'Gas Supply ', page 6.
Refer to Frame 2 for gas inlet service dimensions.
A
minimum
pressure of 20 mbar MUST be available at the boiler inlet
with the boiler operating. The main gas cock is on the left hand side of
the gas control valve, as shown. To facilitate connection the gas cock
may be removed from the gas control valve.
Flow wiring diagram
Note.
If the optional Programmer Kit is to be
fitted refer to the instructions provided with the
kit and Frame 37.
1.
Remove the control box securing screws.
Swing the box down into the servicing
position. Refer to Frame 44.
2.
Route the mains cable into the box from the
RHS of the boiler.
3.
Connect the live, neutral and earth wires into
the terminal strip as shown.
4.
Secure the mains lead with the cable clamp.
5.
On completion of all wiring connections,
relocate the control box and secure.
LEGEND
b
blue
bk
black
v
violet
pk
pink
y/g
yellow/green
br
brown
r
red
y
yellow
w
white
gy
grey
or
orange
INST
ALLA
TION
Summary of Contents for Classic LXFF 230
Page 1: ......
